1 answer:
Answer:
3a² + 13ab - 10b²
Step-by-step explanation:
(3a - 2b)(a + 5b)
Each term in each bracket multiplies each term in the other bracket.
3a(a + 5b) -2b(a + 5b)
3a² + 15ab - 2ab - 10b²
3a² + 13ab - 10b²
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